instance/instance.js

Get an instance back

;(function(){

/**
 * Require the given path.
 *
 * @param {String} path
 * @return {Object} exports
 * @api public
 */

function require(path, parent, orig) {
  var resolved = require.resolve(path);

  // lookup failed
  if (null == resolved) {
    orig = orig || path;
    parent = parent || 'root';
    var err = new Error('Failed to require "' + orig + '" from "' + parent + '"');
    err.path = orig;
    err.parent = parent;
    err.require = true;
    throw err;
  }

  var module = require.modules[resolved];

  // perform real require()
  // by invoking the module's
  // registered function
  if (!module._resolving && !module.exports) {
    var mod = {};
    mod.exports = {};
    mod.client = mod.component = true;
    module._resolving = true;
    module.call(this, mod.exports, require.relative(resolved), mod);
    delete module._resolving;
    module.exports = mod.exports;
  }

  return module.exports;
}

/**
 * Registered modules.
 */

require.modules = {};

/**
 * Registered aliases.
 */

require.aliases = {};

/**
 * Resolve `path`.
 *
 * Lookup:
 *
 *   - PATH/index.js
 *   - PATH.js
 *   - PATH
 *
 * @param {String} path
 * @return {String} path or null
 * @api private
 */

require.resolve = function(path) {
  if (path.charAt(0) === '/') path = path.slice(1);

  var paths = [
    path,
    path + '.js',
    path + '.json',
    path + '/index.js',
    path + '/index.json'
  ];

  for (var i = 0; i < paths.length; i++) {
    var path = paths[i];
    if (require.modules.hasOwnProperty(path)) return path;
    if (require.aliases.hasOwnProperty(path)) return require.aliases[path];
  }
};

/**
 * Normalize `path` relative to the current path.
 *
 * @param {String} curr
 * @param {String} path
 * @return {String}
 * @api private
 */

require.normalize = function(curr, path) {
  var segs = [];

  if ('.' != path.charAt(0)) return path;

  curr = curr.split('/');
  path = path.split('/');

  for (var i = 0; i < path.length; ++i) {
    if ('..' == path[i]) {
      curr.pop();
    } else if ('.' != path[i] && '' != path[i]) {
      segs.push(path[i]);
    }
  }

  return curr.concat(segs).join('/');
};

/**
 * Register module at `path` with callback `definition`.
 *
 * @param {String} path
 * @param {Function} definition
 * @api private
 */

require.register = function(path, definition) {
  require.modules[path] = definition;
};

/**
 * Alias a module definition.
 *
 * @param {String} from
 * @param {String} to
 * @api private
 */

require.alias = function(from, to) {
  if (!require.modules.hasOwnProperty(from)) {
    throw new Error('Failed to alias "' + from + '", it does not exist');
  }
  require.aliases[to] = from;
};

/**
 * Return a require function relative to the `parent` path.
 *
 * @param {String} parent
 * @return {Function}
 * @api private
 */

require.relative = function(parent) {
  var p = require.normalize(parent, '..');

  /**
   * lastIndexOf helper.
   */

  function lastIndexOf(arr, obj) {
    var i = arr.length;
    while (i--) {
      if (arr[i] === obj) return i;
    }
    return -1;
  }

  /**
   * The relative require() itself.
   */

  function localRequire(path) {
    var resolved = localRequire.resolve(path);
    return require(resolved, parent, path);
  }

  /**
   * Resolve relative to the parent.
   */

  localRequire.resolve = function(path) {
    var c = path.charAt(0);
    if ('/' == c) return path.slice(1);
    if ('.' == c) return require.normalize(p, path);

    // resolve deps by returning
    // the dep in the nearest "deps"
    // directory
    var segs = parent.split('/');
    var i = lastIndexOf(segs, 'deps') + 1;
    if (!i) i = 0;
    path = segs.slice(0, i + 1).join('/') + '/deps/' + path;
    return path;
  };

  /**
   * Check if module is defined at `path`.
   */

  localRequire.exists = function(path) {
    return require.modules.hasOwnProperty(localRequire.resolve(path));
  };

  return localRequire;
};
require.register("instance/index.js", function(exports, require, module){
/**
 * global || window
 */

var root = typeof global !== 'undefined'
  ? global
  : window;

/**
 * toString.
 */

var toString = Object.prototype.toString;

/**
 * Check if `input` is String, Function or Object.
 *
 * @param {String} type
 * @param {Mixed} input
 * @returns {Boolean}
 * @api private
 */

function is(type, input) {
  if (type === 'Object') return Object(input) === input;
  return toString.call(input) === '[object ' + type + ']';
}

/**
 * Check if `input` is a string and if so, either
 * refer to the global scope or `require` it. Then
 * call `instance` again in case the exported object
 * is a function.
 *
 * @param {Mixed} input
 * @api private
 */

function str(input) {
  if (!is('String', input)) return;
  return instance(root[input] || require(input));
}

/**
 * Check if `input` is a function and if so instantiate it.
 *
 * @param {Mixed} input
 * @api private
 */

function fn(input) {
  if (!is('Function', input)) return;
  return new input;
}

/**
 * Check if `input` is an object and if so assume it
 * is already an instance of something and return it
 * back;
 *
 * @param {Mixed} input
 * @api private
 */

function obj(input) {
  if (!is('Object', input)) return;
  return input;
}

/**
 * Raise error.
 *
 * @param {Mixed} input
 * @api private
 */

function raise(input) {
  throw new TypeError("Can't handle: " + input);
}

/**
 * input is String    - instnace(global[input] || require(input))
 * input is Function  - `new input`
 * input is Object    - return input
 * else raise hell
 *
 * @param {Mixed} input
 * @returns {Object}
 * @api public
 */

function instance(input) {
  return str(input)
    || fn(input)
    || obj(input)
    || raise(input);
};

/**
 * Primary export.
 */

module.exports = instance;

});
require.alias("instance/index.js", "instance/index.js");if (typeof exports == "object") {
  module.exports = require("instance");
} else if (typeof define == "function" && define.amd) {
  define(function(){ return require("instance"); });
} else {
  this["instance"] = require("instance");
}})();